In-line lamp dimmer



FIG. 1 is a front-elevational view of the lamp dimmer according to my design;

FIG. 2 is a rear-elevational view of the lamp dimmer shown in FIG. 1;

FIG. 3 is a left-side view of FIG. 1;

FIG. 4 is a right-side view of FIG. 1;

FIG. 5 is a top view of FIG. 1; and

FIG. 6 is a bottom view of FIG. 1. 

The ornamental design for an in-line lamp dimmer, as shown. 